Add monitor timestamp settings (VSC-1130)

[boarchuz]

Description

Adds settings to enable and customise timestamps in IDF Monitor.

Closes #975

Type of change

• New feature (non-breaking change which adds functionality)

Steps to test this pull request

1. Open VS Code settings
2. Alter monitorEnableTimestamps and/or monitorCustomTimestampFormat (eg. %Y-%m-%d %H:%M:%S)
3. Open IDF Monitor with an actively transmitting device attached and confirm that timestamps are appended and formatted as expected.

How has this been tested?

Tested by opening IDF Monitor in an existing project, with ESP32 attached and transmitting over UART, and confirming expected behaviour with timestamps enabled, disabled, and with multiple format strings.

Test Configuration:

• ESP-IDF Version: master (1.6.3)
• OS (Windows,Linux and macOS): Linux (Ubuntu)

Checklist

• PR Self Reviewed
• Applied Code formatting
• Added Documentation
• Added Unit Test
• Verified on all platforms - Windows,Linux and macOS

[brianignacio5]

HI @boarchuz thank you for your PR sorry I haven't had the time to make it myself.

Could you run yarn lint locally and use the Format document command in vscode to fix the lint issues ?

[boarchuz]

No worries, @brianignacio5, the changes seemed fairly straight-forward so I had a go myself. If you had something else in mind, feel free to ignore this, I just really want timestamps supported.
Formatting is now fixed.

[brianignacio5]

Oh by the way @boarchuz I've noticed that this --timestamps argument was implemented in ESP-IDF v4.4 so we also need to add a validation for ESP-IDF version to avoid execution issues.

[boarchuz]

we also need to add a validation for ESP-IDF version to avoid execution issues.

Sorry for not getting to this sooner, thanks for merging!